i have got this error message when i’m posting a link from my blog on discourse.
Sorry, we were unable to generate a preview for this web page, because the following oEmbed / OpenGraph tags could not be found: description, image
But this is strange because the opengrph tags are set.
for example :
the check result on iframely tell me every thing is good Iframely URL Debugger - Open Graph, Twitter Cards, oEmbed
Anyone can help me about that ? Is it a bug from my website or from discourse onebox construction ?